[A disorder caused by the presence of an extra chromosome 21 and characterized by mental retardation and distinguishing physical features. ( NCI )]
UMLS (CSP) C0013080 - Congenital Abnormality
- Disease or Syndrome
Relation/PAR: Abnormalities, Multiple
Chromosomal anomalies
Arrieration mentale
syndrome
Chromosomal Disorders, Nervous System